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From 65cb0f2b0204183617b5d6e8e475f85faa8b789d Mon Sep 17 00:00:00 2001
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From: Ingo Franzki <ifranzki@linux.ibm.com>
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Date: Mon, 14 Feb 2022 16:35:34 +0100
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Subject: [PATCH 15/34] EP11: Default unknown CPs to ON
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Newer EP11 cards know additional control points that older cards do not
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know. When building the combined minimum control point setting, treat
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unknown control points as ON, to not disable mechanisms just because an
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older card does not know a control point.
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Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
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---
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usr/lib/ep11_stdll/ep11_specific.c | 21 +++++++++++++++++----
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1 file changed, 17 insertions(+), 4 deletions(-)
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diff --git a/usr/lib/ep11_stdll/ep11_specific.c b/usr/lib/ep11_stdll/ep11_specific.c
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index 147ce7b2..e3451163 100644
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--- a/usr/lib/ep11_stdll/ep11_specific.c
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+++ b/usr/lib/ep11_stdll/ep11_specific.c
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@@ -10904,13 +10904,18 @@ static CK_RV control_point_handler(uint_32 adapter, uint_32 domain,
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#ifdef DEBUG
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TRACE_DEBUG("Control points from adapter %02X.%04X\n", adapter, domain);
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TRACE_DEBUG_DUMP(" ", cp, cp_len);
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+ TRACE_DEBUG("Max control point index: %lu\n", max_cp_index);
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#endif
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if (data->first) {
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data->first_adapter = adapter;
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data->first_domain = domain;
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- memcpy(data->first_cp, cp, cp_len);
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- memcpy(data->combined_cp, cp, cp_len);
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+ /* Apply CP bits 0 to max_cp_index-1 only */
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+ for (i = 0; i < max_cp_index; i++) {
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+ data->combined_cp[CP_BYTE_NO(i)] &=
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+ (cp[CP_BYTE_NO(i)] | ~CP_BIT_MASK(i));
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+ }
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+ memcpy(data->first_cp, data->combined_cp, sizeof(data->first_cp));
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data->max_cp_index = max_cp_index;
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data->first = 0;
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} else {
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@@ -10927,8 +10932,10 @@ static CK_RV control_point_handler(uint_32 adapter, uint_32 domain,
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data->first_domain);
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}
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- for (i = 0; i < cp_len; i++) {
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- data->combined_cp[i] &= cp[i];
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+ for (i = 0; i < max_cp_index; i++) {
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+ /* Apply CP bits 0 to max_cp_index-1 only */
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+ data->combined_cp[CP_BYTE_NO(i)] &=
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+ (cp[CP_BYTE_NO(i)] | ~CP_BIT_MASK(i));
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}
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if (max_cp_index != data->max_cp_index) {
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@@ -10973,6 +10980,11 @@ static CK_RV get_control_points(STDLL_TokData_t * tokdata,
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ep11_private_data_t *ep11_data = tokdata->private_data;
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memset(&data, 0, sizeof(data));
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+ /*
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+ * Turn all CPs ON by default, so that newer control points that are unknown
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+ * to older cards default to ON. CPs being OFF disable functionality.
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+ */
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+ memset(data.combined_cp, 0xff, sizeof(data.combined_cp));
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data.first = 1;
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rc = handle_all_ep11_cards(&ep11_data->target_list, control_point_handler,
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&data);
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@@ -10987,6 +10999,7 @@ static CK_RV get_control_points(STDLL_TokData_t * tokdata,
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TRACE_DEBUG("Combined control points from all cards (%lu CPs):\n",
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data.max_cp_index);
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TRACE_DEBUG_DUMP(" ", cp, *cp_len);
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+ TRACE_DEBUG("Max control point index: %lu\n", data.max_cp_index);
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print_control_points(cp, *cp_len, data.max_cp_index);
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#endif
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--
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2.16.2.windows.1
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